EP1866468B2 - Barreau de grille - Google Patents

Barreau de grille Download PDF

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Publication number
EP1866468B2
EP1866468B2 EP06721895A EP06721895A EP1866468B2 EP 1866468 B2 EP1866468 B2 EP 1866468B2 EP 06721895 A EP06721895 A EP 06721895A EP 06721895 A EP06721895 A EP 06721895A EP 1866468 B2 EP1866468 B2 EP 1866468B2
Authority
EP
European Patent Office
Prior art keywords
plane
grate bar
free surface
angle
grate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06721895A
Other languages
German (de)
English (en)
Other versions
EP1866468B1 (fr
EP1866468A1 (fr
Inventor
Walter Schlepfer
Hansueli MÜLLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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Filing date
Publication date
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP1866468A1 publication Critical patent/EP1866468A1/fr
Application granted granted Critical
Publication of EP1866468B1 publication Critical patent/EP1866468B1/fr
Publication of EP1866468B2 publication Critical patent/EP1866468B2/fr
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/14—Details of machines or apparatus
    • D01G9/20—Framework; Casings; Coverings; Grids

Definitions

  • the present invention relates to a grate bar for a cleaning device of a spinning preparation machine, in particular for a cleaning machine or card, with a free surface, which is an ⁇ ffnerwalze the spinning preparation machine undeliverable and with a Anstell Structure, which, based on the direction of rotation of the ⁇ ffnerwalze upstream the free surface adjoining limiting straight line, wherein one of the boundary line outgoing first half-plane, which is tangent to the free surface and one of the boundary straight outgoing half-plane, which touches the Anstell Structure, include a cutting edge.
  • the axis of the at least one grate bar is adjustable at a distance from the opening roller. This results in a further variation possibility.
  • the grate bars 10 have a cutting edge 19 at their end facing the direction of rotation DR.
  • the grate bars 10 are each pivotally mounted about an axis 9. The possible pivoting movement is indicated by a curved double arrow.
  • a position of the grate bars 10 is indicated, which causes a relatively small outlet AG.
  • a position is indicated in which the departure AG is substantially increased.
  • the respective cutting edge 19 of the grate bar 10 attacks extremely aggressively on the fiber flakes FF guided past. This results in a considerable damage to the cleaned fiber material FM ger .
  • FIG. 3 shows a grate bar 10 according to the prior art in perspective view in a Cartesian xyz coordinate system.
  • the grate bar 10 has an open space 11, which is arranged completely in a plane parallel to the xy plane.
  • the free surface 11 is thus formed two-dimensionally and is bounded at its upstream end by a boundary line 13.
  • the boundary line 20 between the free surface 11 and 12 Anstell St. is included.
  • the boundary line 20 and the subsequent sections of the first half-plane 14 and the second half-plane 15 form the physically formed cutting edge 19 of the grate bar 10. From the first half-plane 14 and the second half-plane 15 is the Kant angle ⁇ , which is also the edge angle ⁇ of the cutting edge 19 is included.
  • FIG. 4 shows an embodiment of a non-inventive grate bar 10 in cross section in the yz plane.
  • a first planar section 11a which adjoins the boundary straight line 13, extends within the first half plane 14.
  • the second planar section 11b is inclined relative to the first half plane 14 by the angle ⁇ in the direction of the second half plane 15.
  • an edge 16 is shown, which has a rounding.
  • FIG. 5 shows a grate bar 10 according to the invention, which is also shown in cross section, ie in the yz plane.
  • the relief surface 11 is divided into a first planar portion 11a, a second planar portion 11b, and a third planar portion 11c.
  • the first planar section 11a is as in the example of FIG. 4 arranged in the first half-plane 14.
  • the second planar portion 11b is inclined relative to the first half plane 14 by the angle ⁇ .
  • the third planar section 11 c is inclined relative to the first half plane 14 by the angle ⁇ .
  • FIG. 7 shows an embodiment of a non-inventive grate bar 10 in cross section.
  • outgoing flat portion 11a closes at the junction 17 without forming an edge, a convex curved portion 11d.
  • FIG. 8 shows the basis of the FIG. 5 described grate bar 10 and its relative arrangement with respect.
  • the beating circle 7 is simplified as a straight line.
  • the angle ⁇ also called free angle, from a running through the boundary line 13 tangential plane of the opening roller 2 to the first half plane 14 has a negative value, since the imaginary tangent plane 18 would have to be rotated in the clockwise direction to convert them into the first tangent plane 14 ,
  • the grate bar 10 causes a very low fiber damage, but due to the downward slope of the third planar portion 11c still a relatively high amount of dirt material can be excreted.
  • FIG. 9 is the grate bar 10 from the FIG. 8 pivoted counterclockwise.
  • the angle ⁇ itself assumes a positive value.
  • the fiber damaging effect of the grate bar 10 is compared to that in the FIG. 8 described situation increases. However, it is not higher than would be the case if a known from the prior art triangular grate bar in the same position would be arranged. Compared to the conventional grate bar but a higher elimination is ensured.
  • inventive grate bars can be combined in a cleaning device.
  • a combination of one or more inventive grate bars with conventional grate elements such as slotted sheets, perforated plates, triangular bars, angle bars or knives is possible. It may further be provided that the grate bars of a cleaning device individually, in groups or in their entirety are adjustable.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (13)

  1. Barreau de grille (10) pour un dispositif de nettoyage d'une machine de préparation de filature (1), en particulier pour une machine de nettoyage ou une machine de cardage, comprenant une surface libre (11) qui peut être rapprochée d'un cylindre d'ouverture (2) de la machine de préparation de filature (1), et comprenant une surface de positionnement (12) qui, en amont par rapport au sens de rotation (DR) du cylindre d'ouverture (2), se raccorde à une droite de limitation (13) limitant la surface libre (11), un premier demi-plan (14) partant de la droite de limitation (13), qui est tangent à la surface libre (11), et un deuxième demi-plan (15) partant de la droite de limitation (13) et qui est tangent à la surface de positionnement (12), contenant une arête de coupe (19), caractérisé en ce que la surface libre (11) est réalisée sous forme tridimensionnelle, cependant la surface libre (11) est réalisée sur le côté du premier demi-plan (14) tourné vers le deuxième demi-plan (15) et que la surface libre (11) comprend, à la suite de la droite de limitation (13), une première portion plane (11a), qui se situe dans le premier demi-plan (14) et que la surface libre (11) comprend, à la suite de la première portion plane (11a), une deuxième portion plane (11 b), qui est inclinée d'un angle a par rapport au premier demi-plan (14) dans la direction du deuxième demi-plan (15) et que la surface libre (11) comprend, à la suite de la deuxième portion plane (11b), une troisième portion plane (11 c) qui est inclinée d'un angle β par rapport au premier demi-plan (14) dans la direction du deuxième demi-plan (15).
  2. Barreau de grille (10) selon la revendication précédente, caractérisé en ce que la première portion plane (11a) comprend 15% à 50%, de préférence 25% à 40%, et la deuxième portion plane (11 b) comprend 15% à 50%, de préférence 25% à 40%, de la surface totale de la surface libre (11).
  3. Barreau de grille (10) selon la revendication 1 ou 2, caractérisé en ce que l'angle a présente une valeur comprise entre 3° et 10° et l'angle β présente une valeur comprise entre 15° et 50°.
  4. Barreau de grille (10) selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu' au moins une arête (16) formée par deux desdites portions planes (11a, 11b, 11c) présente un arrondi ou un biseau.
  5. Barreau de grille (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface de positionnement (12) est réalisée sous forme plane.
  6. Barreau de grille (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier demi-plan (14) et le deuxième demi-plan (15) forment un angle d'arête γ compris entre 30° et 80°, de préférence entre 45° et 65°.
  7. Barreau de grille (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu' il est réalisé sous forme de barre profilée extrudée en boudin.
  8. Barreau de grille (10) selon l'une quelconque des revendications précédentes, caractérisé en ce qu' il présente un profilé creux.
  9. Dispositif de nettoyage pour une machine de préparation de filature (1), en particulier pour une machine de nettoyage ou une machine de cardage, comprenant un cylindre d'ouverture (2), caractérisé en ce que le cylindre d'ouverture (2) est associé à au moins un barreau de grille (10) selon l'une quelconque des revendications précédentes.
  10. Dispositif de nettoyage selon la revendication précédente, caractérisé en ce que l'au moins un barreau de grille (10) est monté de manière à pouvoir pivoter autour d'un axe (9) qui s'étend parallèlement à l'axe de rotation (8) du cylindre d'ouverture (2).
  11. Dispositif de nettoyage selon la revendication précédente, caractérisé en ce que l'au moins un barreau de grille (10) peut pivoter de telle sorte que l'angle δ d'un plan tangentiel du cylindre d'ouverture (2) passant par la droite de limitation (13), par rapport au premier demi-plan (14), puisse présenter des valeurs négatives.
  12. Dispositif de nettoyage selon la revendication précédente, caractérisé en ce que l'au moins un barreau de grille (10) peut pivoter de telle sorte que l'angle δ puisse être ajusté au moins dans une plage de -5° à +30°, de préférence de -15° à +45°.
  13. Dispositif de nettoyage selon l'une quelconque des revendications 9 à 12, caractérisé en ce que l'axe (9) de l'au moins un barreau de grille (10) peut être réglé par rapport à la distance au cylindre d'ouverture (2).
EP06721895A 2005-04-07 2006-04-03 Barreau de grille Not-in-force EP1866468B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6322005 2005-04-07
PCT/CH2006/000188 WO2006105681A1 (fr) 2005-04-07 2006-04-03 Barreau de grille

Publications (3)

Publication Number Publication Date
EP1866468A1 EP1866468A1 (fr) 2007-12-19
EP1866468B1 EP1866468B1 (fr) 2009-06-10
EP1866468B2 true EP1866468B2 (fr) 2012-09-05

Family

ID=36407989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06721895A Not-in-force EP1866468B2 (fr) 2005-04-07 2006-04-03 Barreau de grille

Country Status (5)

Country Link
EP (1) EP1866468B2 (fr)
CN (1) CN101155951B (fr)
BR (1) BRPI0607780A2 (fr)
DE (1) DE502006003938D1 (fr)
WO (1) WO2006105681A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102031596B (zh) * 2010-12-29 2015-04-01 卓郎（金坛）纺织机械有限公司 开棉机的尘格调节机构
DE102020134588A1 (de) 2020-12-22 2022-06-23 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung zur Öffnung von Fasermaterial und damit ausgestattete Textilmaschine
CH719001A1 (de) 2021-09-28 2023-03-31 Rieter Ag Maschf Reinigungsmaschine.
CH719003A1 (de) 2021-09-28 2023-03-31 Rieter Ag Maschf Verfahren und Vorrichtung zur Reinigung von Fasergut.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611696A (en) † 1926-04-17 1926-12-21 Meinrad F Thoma Machinery for preparing textile fibers
EP1101844A1 (fr) † 1999-11-16 2001-05-23 Akiva Pinto Couteau pour extracter de souillure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191021273A (en) * 1909-09-13 1911-03-30 Morris Wehli Improvements in Grid Bars for Conical Openers for Treating Fibrous Materials.
US1661518A (en) * 1926-01-28 1928-03-06 Wehli Morris Grid bar for fiber-treating machines
SU1470818A1 (ru) * 1987-04-14 1989-04-07 Ташкентский институт текстильной и легкой промышленности им.Ю.Ахунбабаева Колосникова решетка
EP0381859B1 (fr) 1989-01-31 1994-06-15 Maschinenfabrik Rieter Ag Machine de nettoyage pour fibres textiles
CN2259410Y (zh) * 1995-12-11 1997-08-13 江苏省金坛市纺织机械总厂 混开棉机的开松除杂装置
AU3138799A (en) * 1998-04-21 1999-11-08 Elmgaard Birger Sorensen Sifting net for a fibre distributor
DE10230603B4 (de) * 2002-07-08 2017-06-14 Trützschler GmbH & Co Kommanditgesellschaft Verfahren und Vorrichtung an einer Spinnereivorbereitungsmaschine, z.B. Reiniger, Öffner, Karde o. dgl., zur Reinigung von Fasergut

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611696A (en) † 1926-04-17 1926-12-21 Meinrad F Thoma Machinery for preparing textile fibers
EP1101844A1 (fr) † 1999-11-16 2001-05-23 Akiva Pinto Couteau pour extracter de souillure

Also Published As

Publication number Publication date
WO2006105681A1 (fr) 2006-10-12
BRPI0607780A2 (pt) 2009-06-13
DE502006003938D1 (de) 2009-07-23
CN101155951B (zh) 2010-09-29
CN101155951A (zh) 2008-04-02
EP1866468B1 (fr) 2009-06-10
EP1866468A1 (fr) 2007-12-19

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